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Seasonal and lighting influences on the laying rhythm of the fowl

โœ Scribed by Albada, Ir. M.

Publisher
Springer-Verlag
Year
1958
Weight
451 KB
Volume
2
Category
Article
ISSN
0367-8253

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โœ Warren, D. C. ;Scott, H. M. ๐Ÿ“‚ Article ๐Ÿ“… 1936 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 1015 KB

I t is a common observation that in the domestic fowl egg laying is normally restricted to the daylight period. The few eggs produced at night are usually without shell o r with a poorly formed one, indicating that they were prematurely expelled. Atwood ( '29) has shown that since somewhat more than